Simplify: 4x2−12x+1\frac{4x^2 - 1}{2x + 1}2x+14x2−1 for 2x+1≠02x + 1 \neq 02x+1=0.
2x+12x + 12x+1
2x−12x - 12x−1
4x4x4x
4x22x\frac{4x^2}{2x}2x4x2